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Volumn 9, Issue 7, 1997, Pages 1499-1501

Stepwise Construction of Conductive Au Colloid Multilayers from Solution

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Indexed keywords


EID: 0001278483     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm970087w     Document Type: Article
Times cited : (259)

References (41)
  • 25
    • 85033134813 scopus 로고    scopus 로고
    • Particle dimensions (221 particles sized): 10.7 nm ± 1.3 nm (long axis); 9.4 nm ± 1.1 nm (short axis)
    • Particle dimensions (221 particles sized): 10.7 nm ± 1.3 nm (long axis); 9.4 nm ± 1.1 nm (short axis).
  • 28
    • 85033138451 scopus 로고    scopus 로고
    • note
    • Optical spectra were acquired using a Varian Cary 5 spectrophotometer; particle coverages were calculated by atomic absorption measurements (Perkin-Elmer 1100B outfitted with a graphite furnace) on 50% aqueous aqua regia-digested surfaces, assuming all Au particles were prolate spheroids, with 10.7 × 10.7 × 9.4 nm axes.
  • 32
    • 85033133394 scopus 로고    scopus 로고
    • note
    • 14
  • 33
    • 85033149676 scopus 로고    scopus 로고
    • note
    • 14b data showing the presence of connective paths over large areas after 5-6 exposures to Au. If there were direct particle contact, these samples would conduct, contrary to what is observed.
  • 35
    • 0041835165 scopus 로고
    • Edwards, P. P.; Rao, C. N. R., Eds.; Taylor and Francis: London, and references therein
    • Adkins, C. J. In Metal-Insulator Transitions Revisited; Edwards, P. P.; Rao, C. N. R., Eds.; Taylor and Francis: London, 1995; pp 191-210 and references therein.
    • (1995) Metal-Insulator Transitions Revisited , pp. 191-210
    • Adkins, C.J.1
  • 36
    • 85033135361 scopus 로고    scopus 로고
    • note
    • 14 The film volume (v) is defined as the product of the cross-sectional area (a, which is constant) and the film thickness (z). If the number of Au treatments is n and z = yn (where y is a constant), then v = ayn. The volume fraction f is defined as the ratio of the Au volume (g) to v. Since g = qθa, where q is the volume per particle (a constant), θ = the number of particles/cross-sectional area, and a is defined as above, and θ = rn (where r is a constant, Supporting Information), then f = g/v = (qrn)/(ayn) = a constant. Thus, we conclude that f remains roughly constant. An upper limit of f ≈ 0.5 can be obtained by integration of light areas in a FE-SEM image and assuming that the volume under each integrated element is completely filled with Au.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.